/*
 * Copyright 2019 Flipkart Internet Pvt. Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.flipkart.ohos.proteus.converter;

import com.google.gson.Gson;

import java.lang.annotation.Annotation;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import java.lang.reflect.Type;

import okhttp3.RequestBody;
import okhttp3.ResponseBody;
import retrofit2.Converter;
import retrofit2.Retrofit;

import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

public final class GsonConverterFactory extends Converter.Factory {
    private final Gson gson;

    private GsonConverterFactory(Gson gson) {
        this.gson = gson;
    }

    public static GsonConverterFactory create(Gson gson) {
        return new GsonConverterFactory(gson);
    }

    @Override
    public Converter<ResponseBody, ?> responseBodyConverter(Type type, Annotation[] annotations, Retrofit retrofit) {
        return new GsonResponseBodyConverter<>(gson, type);
    }

    @Override
    public Converter<?, RequestBody> requestBodyConverter(Type type, Annotation[] parameterAnnotations,
                                                          Annotation[] methodAnnotations, Retrofit retrofit) {
        Converter<?, RequestBody> result = null;
        for (Annotation annotation : methodAnnotations) {
            if (annotation instanceof UrlEncoded) {
                result = new UrlEncodedGsonRequestBodyConverter<>(gson, type);
            }
        }
        if (result == null) {
            result = new GsonRequestBodyConverter<>(gson, type);
        }
        return result;
    }

    /**
     * URL Encode the JSON String object before sending it over the wire.
     */
    @Documented
    @Target(METHOD)
    @Retention(RUNTIME)
    public @interface UrlEncoded {
    }
}
